新バージョンStudioにてxamlが開けなくなった

どなたかHelpお願いします。
新バージョン(ver.2025.0.157)にて前バージョンで作成したxamlを開く際に以下のエラーが表示されます。

↓UiPath.Studio.log--------
項目「G:\XXX\Main処理.xaml」を開けません: テキスト ‘V5’ から ‘Version’ を作成できませんでした。。

項目を開けません: UiPath.Studio.Contracts.RecoverableException: 項目「G:\XXX\Main処理.xaml」を開けません: テキスト ‘V5’ から ‘Version’ を作成できませんでした。。
—> RemoteException wrapping System.Xaml.XamlObjectWriterException: テキスト ‘V5’ から ‘Version’ を作成できませんでした。 —> RemoteException wrapping System.FormatException: V5 is not a valid value for NTargetVersion. —> RemoteException wrapping System.ArgumentException: Requested value ‘V5’ was not found.
at System.Enum.TryParseByName[TStorage](RuntimeType enumType, ReadOnlySpan1 value, Boolean ignoreCase, Boolean throwOnFailure, TStorage& result) at System.Enum.TryParseByValueOrName[TUnderlying,TStorage](RuntimeType enumType, ReadOnlySpan1 value, Boolean ignoreCase, Boolean throwOnFailure, TUnderlying& result)
at System.Enum.TryParse(Type enumType, ReadOnlySpan1 value, Boolean ignoreCase, Boolean throwOnFailure, Object& result) at System.ComponentModel.EnumConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) --- End of inner exception stack trace --- at System.ComponentModel.EnumConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateObjectWithTypeConverter(ServiceProviderContext serviceContext, XamlValueConverter1 ts, Object value)
at System.Xaml.XamlObjectWriter.Logic_CreateFromValue(ObjectWriterContext ctx, XamlValueConverter1 typeConverter, Object value, XamlMember property, String targetName, IAddLineInfo lineInfo) --- End of inner exception stack trace --- at System.Xaml.XamlObjectWriter.Logic_CreateFromValue(ObjectWriterContext ctx, XamlValueConverter1 typeConverter, Object value, XamlMember property, String targetName, IAddLineInfo lineInfo)
at System.Xaml.XamlObjectWriter.Logic_CreatePropertyValueFromValue(ObjectWriterContext ctx)
at System.Xaml.XamlObjectWriter.WriteEndMember()
at System.Xaml.XamlServices.Transform(XamlReader xamlReader, XamlWriter xamlWriter, Boolean closeWriter)
at System.Xaml.XamlServices.Load(XamlReader xamlReader)
at UiPath.Workflow.Operations.Serializer.Services.WorkflowXamlSerializer.CreateActivityBuilder(Stream stream)
at UiPath.Workflow.Operations.Serializer.Services.WorkflowXamlSerializer.CreateFromStream(Stream stream)
at UiPath.Workflow.Operations.Serializer.Services.WorkflowXamlSerializer.LoadFromFile(String file)
at UiPath.Studio.Plugin.Workflow.WorkflowHandling.DesignerBuilder.g__LoadActivityBuilderFromFile|48_0(String fileName)
at UiPath.Studio.Plugin.Workflow.WorkflowHandling.DesignerBuilder.LoadFileInDesigner(String fileName, WorkflowDesigner designer)
at UiPath.Studio.Plugin.Workflow.WorkflowHandling.DesignerBuilder.BuildInternal(DesignerEventsSubscriber eventsSubscriber, String workflowId, String fileName)
at UiPath.Studio.Plugin.Workflow.WorkflowHandling.DesignerBuilder.Build(DesignerEventsSubscriber eventsSubscriber, String workflowId, String fileName)
at UiPath.Studio.Plugin.Workflow.WorkflowHandling.DesignerWrapper.LoadAsync(String fileName)
at UiPath.Studio.Plugin.Workflow.Services.DesignerFileProjectEndpoint.<>c__DisplayClass11_0.<b__0>d.MoveNext()
— End of stack trace from previous location —
at UiPath.Studio.Plugin.Workflow.Services.DesignerFileProjectEndpoint.<>c__DisplayClass11_0.<b__0>d.MoveNext()
— End of stack trace from previous location —
at UiPath.Studio.Shared.MVVM.Services.DispatcherService.InvokeAsync(Func1 func) at UiPath.Studio.Plugin.Workflow.Services.DesignerFileProjectEndpoint.Load(String fileName) at UiPath.CoreIpc.Server.<>c__DisplayClass7_3.<<-ctor>g__InvokeMethod|6>d.MoveNext() --- End of stack trace from previous location --- at UiPath.CoreIpc.Server.<>c__DisplayClass7_1.<<-ctor>g__HandleRequest|3>d.MoveNext() --- End of stack trace from previous location --- at UiPath.CoreIpc.Server.<>c__DisplayClass7_2.<<-ctor>b__5>d.MoveNext() --- End of stack trace from previous location --- at UiPath.CoreIpc.Helpers.Timeout[TResult](TimeSpan timeout, List1 cancellationTokens, Func2 func, String message, Func2 exceptionHandler)
— End of inner exception stack trace —
at UiPath.Studio.Core.Services.PersistableServiceBase3.OnOpenAsyncInternal(String path, IFactory2 resolvedFactory, IOpenOptions options)
at UiPath.Studio.Core.Services.PersistableServiceBase3.OnOpenAsync(String path, IFactory2 resolvedFactory, IOpenOptions options)
at UiPath.Studio.Shell.Services.DocumentService.OnOpenAsync(String path, IFactory2 resolvedFactory, IOpenOptions options) at UiPath.Studio.Core.Services.PersistableServiceBase3.OpenAsync(OpenInformation openInfo)
at UiPath.Studio.App.Desktop.ProjectItems.Behaviors.FileProjectItemBehavior.TryToOpenFileAsync(String filePath)
at UiPath.Studio.App.Desktop.ProjectItems.Behaviors.FileProjectItemBehavior.ExecuteOpenAsync(IFileSystemProjectItemViewModel item)
at UiPath.Studio.App.Desktop.MVVM.Commands.TaskCommand`3.Execute(TExecuteParameter parameter, Boolean ignoreCanExecuteCheck)
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler), HResult -2146233088

対象のxaml内でGrepすると「V5」に該当する値は複数存在していて、例えば以下のような値です。

<uix:TargetAnchorable BrowserURL=“amazon.co.jp/s” CVScreenId=“4411a993-a328-4d88-9029-c5497d001e35” CvTextArea=“1337, 1490, 125, 19” CvType=“AnyWordGroup” DesignTimeRectangle=“1343, 1485, 116, 30” DesignTimeScaleFactor=“1.5” ElementType=“Text” FullSelectorArgument=“<webctrl aaname=‘*通のデータ’ parentid=‘content-ext-main’ tag=‘SPAN’ />” FuzzySelectorArgument=“<webctrl parentid=‘content-ext-main’ tag=‘SPAN’ type=‘’ class=‘’ />” Guid=“86bbd08a-4fb8-4426-a00f-003de7999deb” ImageBase64=“” InformativeScreenshot=“b292f265c4b62376b0ce916080952feb.png” ScopeSelectorArgument=“<html app=‘chrome.exe’ title=‘Amazon.co.jp : *’ />” SearchSteps=“Selector, FuzzySelector, CV” Version=“V5” Visibility=“Interactive” WaitForReadyArgument=“Complete”>

セレクタ内で指定した何の値なのかはわかりません。
こちら解決策や追加の調査方法など、助けていただけるとありがたいです。

main.xmlのバックアップを作成した上で、テキストエディタで開き、「Version=V5」という記述のところを「Version=V4」に置換して保存してみてください。